The 20 richest people of all time

The most wealthy individuals ever

Step aside Carlos Slim and Warren Buffett. When it comes to the 20 richest people in history, these massively wealthy tycoons don't even get a look-in. From 19th-century American industrialists to the African king who once owned half the world's gold, here are the most moneyed people of all time, as guesstimated by leading economists and historians and adjusted for inflation.